alone animal Australia avian beak beautiful beauty bird Cacatua colors colourful cute domesticated Eolophus Eolophus roseicapilla exotic eye feathers galah gray grey head looking nature parrot pink pretty Psittaciform rose-breasted cockatoo roseate cockatoo side standing stare tropical white wild wildlife wings Australian aviculture black body bright cacatua-galerita caged captive cockatoo colours conspicuous crest curled curling curved-beak dark-grey-black-bill distinctive fluffy iconic intelligent large mimicry Noisy numerous plumage popular powerful screeching strong sulphur-crested yellow